Air transportation safety investigation A25Q0137

Table of contents

    Collision with terrain and fire
    Privately registered
    KitFox Model IV (advanced ultralight), C-GMFA
    Casey Aerodrome (CSQ4), Quebec

    The occurrence

    On 31 August 2025, a privately registered KitFox Model IV advanced ultralight aircraft was conducting a flight from Casey Aerodrome, Quebec, to a private runway in Sainte-Eulalie, Quebec, with the pilot and 1 passenger on board.

    Shortly after takeoff, during the initial climb, the aircraft turned steeply to the right and the nose pitched down before crashing.

    There was a post-impact fire, and the aircraft was destroyed. The 2 occupants were fatally injured. The TSB is investigating.

    Class of investigation

    This is a class 4 investigation. These investigations are limited in scope, and while the final reports may contain limited analysis, they do not contain findings or recommendations. Class 4 investigations are generally completed within 220 days. For more information, see the Policy on Occurrence Classification.

    TSB investigation process

    There are 3 phases to a TSB investigation

    1. Field phase: a team of investigators examines the occurrence site and wreckage, interviews witnesses and collects pertinent information.
    2. Examination and analysis phase: the TSB reviews pertinent records, tests components of the wreckage in the lab, determines the sequence of events and identifies safety deficiencies. When safety deficiencies are suspected or confirmed, the TSB advises the appropriate authority without waiting until publication of the final report.
    3. Report phase: a confidential draft report is approved by the Board and sent to persons and corporations who are directly concerned by the report. They then have the opportunity to dispute or correct information they believe to be incorrect. The Board considers all representations before approving the final report, which is subsequently released to the public.

    For more information, see our Investigation process page.

    The TSB is an independent agency that investigates air, marine, pipeline, and rail transportation occurrences. Its sole aim is the advancement of transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.